UpdateThumbnail

UpdateThumbnail(ThumbnailGeneratingOptions)

Updates Thumbnail of the document according to the specified options.

public void UpdateThumbnail(ThumbnailGeneratingOptions options)

Parameter	Type	Description
options	ThumbnailGeneratingOptions	The generating options to use.

Remarks

The ThumbnailGeneratingOptions allows you to specify the source of thumbnail, size and other options. If attempt to generate thumbnail fails, doesn’t change one.

Examples

Shows how to update a document’s thumbnail.

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.Writeln("Hello world!");
builder.InsertImage(ImageDir + "Logo.jpg");

// There are two ways of setting a thumbnail image when saving a document to .epub.
// 1 -  Use the document's first page:
doc.UpdateThumbnail();
doc.Save(ArtifactsDir + "Document.UpdateThumbnail.FirstPage.epub");

// 2 -  Use the first image found in the document:
ThumbnailGeneratingOptions options = new ThumbnailGeneratingOptions();
options.ThumbnailSize = new Size(400, 400);
options.GenerateFromFirstPage = false;

doc.UpdateThumbnail(options);
doc.Save(ArtifactsDir + "Document.UpdateThumbnail.FirstImage.epub");

See Also

• class ThumbnailGeneratingOptions
• class Document
• namespace Aspose.Words
• assembly Aspose.Words

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UpdateThumbnail()

Updates Thumbnail of the document using default options.

public void UpdateThumbnail()

Examples

Shows how to update a document’s thumbnail.

Document doc = new Document();
DocumentBuilder builder = new DocumentBuilder(doc);

builder.Writeln("Hello world!");
builder.InsertImage(ImageDir + "Logo.jpg");

// There are two ways of setting a thumbnail image when saving a document to .epub.
// 1 -  Use the document's first page:
doc.UpdateThumbnail();
doc.Save(ArtifactsDir + "Document.UpdateThumbnail.FirstPage.epub");

// 2 -  Use the first image found in the document:
ThumbnailGeneratingOptions options = new ThumbnailGeneratingOptions();
options.ThumbnailSize = new Size(400, 400);
options.GenerateFromFirstPage = false;

doc.UpdateThumbnail(options);
doc.Save(ArtifactsDir + "Document.UpdateThumbnail.FirstImage.epub");

See Also

• class Document
• namespace Aspose.Words
• assembly Aspose.Words